How to build an app like Strava
The short answer
- An app like Strava records runs and rides with GPS, shows the route and stats, and shares them with friends in a feed.
- Recommended stack: an Expo app with Expo Location, Supabase with PostGIS for routes, Mapbox for outdoor maps, and push notifications for kudos.
- The hardest part is recording reliably: in the background, without a signal, for hours, without emptying the battery.
What an app like Strava does at its core
Athletes press start, put the phone away and go. The app records the route, then shows distance, time, pace and elevation, and draws the route on a map. Activities appear in a feed where friends can give kudos and comment.
Over time it becomes a training log, and features like segments with leaderboards, clubs and challenges keep people engaged. A subscription unlocks deeper analysis.
MVP features and what comes later
An MVP (minimum viable product) is the smallest version that real users can use and pay for. It tests the idea before you build everything.
In your first version
- Record an activity with GPS, also with the screen off
- Recording without mobile signal, uploaded later
- Summary: distance, time, pace and the route on a map
- Activity history
- Follow friends and a simple feed with kudos
- Privacy zone that hides the start and end near home
Later
- Segments and leaderboards
- Sync with watches and bike computers
- Apple Health and Health Connect
- Route planning
- Clubs and challenges
- Training analysis behind a subscription
The recommended stack
This is the blueprint a developer would start from, using the same building blocks as the live builder. It matches the Native Mobile App result of the quiz.
CLIENT
iOS + Android
Expo
CORE
Database + API
Supabase + PostGIS
GPS
Expo Location
MAPS
Mapbox
NOTIFICATIONS
Expo Notifications
- Recommended
- Native Mobile App
- Key permission
- Background location
- Pieces
- 5 building blocks
Why each layer
- ClientExpo app
Recording with the screen off for hours is only possible in a native app. Expo covers iOS and Android from one codebase.
- GPSExpo Location with background tasks
Expo Location can keep receiving positions while the app is in the background, using a background task. Save every point on the phone first and upload when the activity ends.
- CoreSupabase with PostGIS
Routes are stored as lines in PostGIS, which makes questions like "activities that pass through here" possible later. Activities, follows and kudos are ordinary related data.
- MapsMapbox
Outdoor maps with trails and terrain matter for runners and riders, and custom map styles let the route stand out. Google Maps works too.
- NotificationsExpo Notifications
Kudos and comments bring people back, but bundle them, so ten kudos don't mean ten pushes.
The hardest parts of an app like Strava, and how to solve them
1. Recording that never stops
Phones try hard to stop background apps. Use the platform's background location mode, ask for the right permission at the right moment, and store points on the device as they come in, so a crash or a dead zone doesn't lose the run.
Background location is reviewed by the stores. Google Play asks for a declaration form and a short video, and requires a clear notice in the app before the permission prompt. Fitness recording is a clear reason, but plan the paperwork.
2. Turning noisy GPS into clean numbers
Raw GPS points jump around, especially between buildings. Drop points with poor accuracy, smooth the line, and detect pauses when someone stops at a traffic light. Elevation from phone GPS is unreliable; an elevation data service gives better numbers later.
3. Privacy zones
Many people start and end at home, so a public route can reveal an address. Hide the first and last part of a route inside a privacy zone, and make new activities visible only to followers by default.
4. A feed that stays fast
A feed shows recent activities from everyone you follow. A simple database query works for a first version. Store a simplified version of each route for the feed's small map previews, so the feed doesn't load thousands of points per activity.
What you can leave out of the MVP
- Segments and leaderboards, which need route matching and cheat detection
- Watch and bike computer sync
- Route planning
- Clubs and challenges
- A subscription: launch free and learn what people would pay for
What it costs
This page gives no price on purpose: the cost depends on your scope and your developer's rate. The App Cost Calculator turns the MVP features above into an hour range, and you add your rate.
Add "Connection to one external tool" for each watch or health platform you want to sync with.
Sources for the platform rules and tools mentioned on this page:
Frequently asked questions
Can a fitness tracking app be a web app?
Not for recording. Browsers can't reliably track location with the screen off. Recording needs a native app; a web page can show activities and profiles.
How do I make GPS recording reliable?
Use the phone's background location mode, store each point on the device right away, and upload when the activity ends. Test real runs with the phone in a pocket, not only in a simulator.
What is a privacy zone?
An area around a place like home where the route is hidden from others. Without it, a public activity that starts at someone's door shows where they live.
Do I need to connect watches from the start?
No. Phone recording is enough for a first version. Watch and health platform sync can follow, each one as a separate integration.
Related
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Strava is a trademark of its owner. Find My Stack is not affiliated with it; the name only describes the type of app.